Examine source code of Bookmark Router

{
  "author": "igorlogius",
  "homepage_url": "https://github.com/igorlogius",
  "description": "Place bookmarks into specific folders based on url regex matches",
  "browser_action": {
    "default_area": "navbar"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "commands": {
    "_execute_browser_action": {
      "suggested_key": {
        "default": "Ctrl+Alt+B"
      }
    }
  },
  "icons": {
    "128": "icon.png"
  },
  "manifest_version": 2,
  "name": "Bookmark Router",
  "options_ui": {
    "open_in_tab": true,
    "page": "options.html"
  },
  "permissions": [
    "tabs",
    "storage",
    "notifications",
    "bookmarks"
  ],
  "version": "1.0.0",
  "browser_specific_settings": {
    "gecko": {
      "id": "{fd8ac1b2-5c46-4ff8-9ad0-5a098e270e9d}"
    }
  }
}